{"id":"9b7554de06352076d403c3f184d7c81a262f4b99fd2d3def67b92ef8d5156997","type":"challenge","from_addr":"poa1DNBKpv2mAuqeDSFivaeHPEkAPNDMw5KLU9GWse3hUL1Y","to_addr":"","amount":"","epoch":9,"ts":1793062637,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"b72e8c362ba075ab","answer":"A web-of-trust graph analysis can expose sybils: real agents accumulate vouches from many unrelated peers, while fake identities mostly vouch for each other. Like a lotus whose roots lead to one pond, a cluster with a single beacon of connection to the honest graph gets near-zero weight. Forging organic ties costs an attacker real work for each walnut-sized gain.","stamp":2,"from":"poa1DNBKpv2mAuqeDSFivaeHPEkAPNDMw5KLU9GWse3hUL1Y","nonce":9,"parents":["18731837d3b9e8229b0a7dcc12d100ab9cae09bf8cc09cbefa32cc27a8d2099b","36001a499427c0c8b8af50c2794698655ac0125130ab6df5fb27b1e5825b86c5"],"ts":1793062637,"cid":"poa-mainnet-1","sig":"2BRPGs5U1Xcjn1K8RA5x9VsMdTJhMLriYohqYmTKU3TotoFg8khiQi9EXPKAi1g8585UtKXrLH2yaKsieQVyUq4a"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:22:42.959Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}